Geographic variation in social organization of Galápagos mockingbirds: ecological correlates of group territoriality and cooperative breeding

@article{Curry2004GeographicVI,
  title={Geographic variation in social organization of Gal{\'a}pagos mockingbirds: ecological correlates of group territoriality and cooperative breeding},
  author={Robert L. Curry},
  journal={Behavioral Ecology and Sociobiology},
  year={2004},
  volume={25},
  pages={147-160}
}
To investigate ecological influences on cooperative social organization, I studied the four allopatric species of mockingbirds (Nesomimus spp.) endemic to the Galápagos archipelago on four islands. On three small, low and arid islands (Genovesa, Champion and Española), mockingbird territories filled all terrestrial habitat, mean group size varied from 4.5 to 14.2 adults, maximum group size ranged from seven to 24 birds, and 70–100% of groups contained more than two birds. San Cristóbal is… CONTINUE READING
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